Deck-sash pivot mechanism.



F. CONRAD. DECK SASH PIVOT MECHANISM.

Patented Sept. 23, 1913.

M/@MM 35% 52ML/ l Non x u FRANK CONRAD, OF MILWAUKEE, VJISCONSIN.

DECIQSAISH PIVOT MECHANISM.

Speccation of Letters Patent.

.dentedSoptt, 1913.

Application filed 4April 28, 1913. Serial No. 764.118.

To all tf1/mm it may conce/'a Be. it known that l, FRANK. (lonnan, a citi- ',:en olf the 4United titates, residing at Milwaukee, county oft ivlilwaukce, and State o1" vitisconsin, have invented new and use'tul improvements in Deck-Sash Pivot Mechanism, ot' which the followingr `is a speeification.

irly invention relates to improvements in deck sts-th pivot mechanism.

The object o't my invention is to provide a, it'orm ol" construction which :facilitates the removal and replacement oit the sash hut which securely retains the sash in position against accitflental disjilact-nnent, regard heine; had Yt'or durability, ease ot adjustment and convenience ot' rminipulation.

Vin the drawings-Fininfo l is a fragmentary elevation showing' they inner taee oil a deck sash at one end and a portion oit the traine to which my invention is applied. Fig'. 2 is a sectional view of the decl: sash and traine, showing my invention as it appears in luse with the sash in. closed position.

YLike parts are identified bythe saine reference characters throughout hoth views.

rlhe traine l, deck sash Q, and segmental ln'ach'et 2l, secured to the end har oli' the deel: sash, may he o't ordinary construction. A tixed supjiortiner plate 5 is secured to the iframe and provided at its lower end with a hearing' memher t3 having' a recess 7 in its upper su rit'ace, adapted to receive the pivoty stud t5 with which all ordinary segmental lnfaclicts 23 are provided. The plate 5 is provided with outwartilly `projeetingt` nicmhers l0, recesseil at lit to receive shouldered projections l2 carried hy a removable plate lll. This plate .t3 is provided with a 't'oot 'piece lltv at its lower end, adapted to hear upon or hang' directly above the pivot stud 8, so that when the plate '13 is held in normal position, the pivot stud 8 cannot hc disengaged -troni said socket T.

A loeltiirer cani ,tti is pivoted at Yttl to the Vupper end portion oit the tixed plate 5. This cam comprises an oval memher, and the pivot lt extends therethrough at one side oit its center, the other side ot' said memher having a projection 17 which serves as a handle for rotating the cam upon the pivot pin. The upper end oi the plate itil is provided with a rounded recess or depression at 18, into which the member 15 .may

enter. Vhen the wider portion of the cam is in this recess i8, the plate l?) will `he held in its normal position with the shouldered projia-tions V1Q in the recesses in the malnhers l0, whereupon the upwardly projecting hook posts 2() on the inenihers .t0 will prevent the plate lil :trom heini;v dislodged. llut hy rotatingthe cam 'lo to its inverted or dotted line position, illustrated in Fig. 2, `the plate 12:3 may he removed tor it may then `he li't'ted sutlciently to permit the shoulders l2 to pass over the hook posts 20.

n vertically movahlc rod l5 is provided, with a iorlted menihcr 2t; at its lower end and an anti-,trictitni roller 9T is jonrnaled inthe 'torhY arms and adapted to travel over the rounded projections or teeth Ltw on the upper marnin ol' scnjlnent Il. ',lhe arms ot the 'torh 26 `extend helow the. .roller on ol posite sides ot segment il and cooperate in holdingl the parts ,in place. The rod Q5 extends through and is `euided loy the, lnacket arms ltl and itt). A coiled spring' ill is interposed hctween mcniher Qt and arm 2t), wherehy thc rod is forced doui'nwardlyand the roller pressed against the upper inarjrin otf the bracket It. '.lhe reactionary pressure will tend to litt plate l?) h v the pressure ol" the spring upon the arm 2t) through which the rod passes. ,tnt this upward pressure will he resisted hy the cani '15.

.lt will hc ol ;;ei.'ve,d that as the cam .l5 is slightly oval in 'toi-m. it will, when rotated Atrom its normal position. tirst canse a slightdepression` ot the plate 1? as the eudio'f the cam moves through the recess 1S at the top of said plate. lnit the continued move ment ot the cani ln'iim's its shorter radii into the recess. whercuj'ion the pressure ot spring' 3l causes plate til to litt progressively until it has heen raised sutliciently to permit :its removal. lVhen the plate is removed. the itoot piece tl will, ot: course. no longer hear upon the pivot stud o. and the sash Q maythercupon he 't'reely li'tted and talten out. lVhen the sash is replaced, plate 1l il will he re-inserted in position and depressed against the tonsion ot the sprint); 231, either prejniratory to the rotation olf cam t5 to normal position, or hy the pressure ol said cam thereon when heinp; rotated to such position. )wing to the tact. that when the cam reachesnormal posititni a slight lifting' movement 0i the plate 1&3 is permitted, it is ohvions that no accidental disengimement is possible, for the upward pressure ot the plate upon the cam will hold the latter in its normal position and the resistance of the cam to the pressure of the plate Will hold the plate in position, the foot piece la also holding the pivot stud in position in its bearing.

I claim-- f 1. rlhe combination With the stationary frame of a deck sash, of a set of projecting recessed members supported therefrom, a movable member socketed in said projecting members and adapted to be disengaged therefrom by a lifting movement, a locking device supported from said frame in a position to normally retain said movable member in position, and a spring actuated rod carried by said movable member and adapted to travel along the margin of a toothed segmental bracket carried by the deck sash.

2. The combination with the stationary frame of a deck sash, of a set of projecting recessed members supported therefrom, a movable member socketed in said projecting members and adapted to be disengaged therefrom by a lifting movement, a locking device supported from said frame in a position to normally retain said movable member Ain position, and a spring actuated rod carried by said movable member and adapted to travel along the margin of a toothed segmental bracket. carried by the deck sash, said movable member being provided with a downward extension adapted to retain a deck sash pivot stud in an open bearing member.

3. The combination with the stationary frame of a deck sash, of a setof projecting recessed members supported therefrom, a movable member socketed in said projecting' members and adapted to be disengagec therefrom by a lifting movement, a locking device supported from said frame in a position to normally retain said movable member in position, and a spring actuated rod carried by said movable member and adapted to travel along the margin of a toothed segmental bracket carried by the deck sash, said spring actuated rod being provided with an anti-friction roller adapted to travel over the marginal teeth of said segmental bracket.

4l. The combination with the stationary frame of a deck sash, of a set of projecting recessed members supported therefrom, a movable member socketed in said projecting members and adapted to be disengaged therefrom by a lifting movement, a locking device supported from said frame in a position to normally retain said movable member in position, and a spring actua-ted rod carried by said movable member and adapted Vto travel along the margin of a toothed segmental bracket carried by the deck sash, said spring actuated rod being provided With an anti-friction roller adapted to travel over the marginal teeth of said segmental bracket, and said rod also having a forked member adapted to straddle the margin of said bracket. Y

5. rll`he combination with a deck sash frame, a deck sash provided With a segmental bracket having a pivot stud, of a fixed member secured to the frame and provided With an open bracket for said pivot stud, a removable plate having socketed connection with said fixed member and adapted to be disengaged therefrom only byy a lifting movement, said plate having arounded recess in its upper end, a cam rotatably pivoted to said fixed member and having its margin engaged in said recess, a spring actuated rod supported by said movable plate With one end adapted to travel upon the margin of the sash bracket, said plate being lifted by the reaction of the spring against said cam, and said cam in one posi.- tion being adapted to prevent a removal of the plate from the fixed member. Y

6. The combination Withv a deck sash frame, a deck sash provided with a segmental bracket having a pivot stud, of a fixed member secured to the frame and provided With an open bracket for said pivot stud, a removable plate having socketed connection With said fixed member and adapted to be disengaged therefrom only by a lifting movement, said plate having a rounded recess in its upper end, a cam rotatably pivoted to said fixed member and having its margin engaged in said recess, a spring actuated rod supported by said movable plate with one end adapted to travel upon the margin of the sash bracket, said plate being lifted by the reaction of the spring` against said cam, and said cam in one position being adapted to prevent a removal of the plate from the fixed member, said plate being also provided with a downward extension adapted When in normal position to prevent the disengagement of the pivot stud from said open bearing.

In testimony whereof l aliix my signature in the presence of two Witnesses.

FRANK CONRAD.

`SWitnesses OTTILEA WEBER, H. C. VAN RYN.

Copies of this patentmay be obtained for ve cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

